Additional Practice Questions: Human FactorsAir Regulations — DGCA CPL practice questions
Question 1 of 76
The most effective method of scanning for other aircraft for collision avoidance during daylight hours is to use
All 76 questions — Additional Practice Questions: Human Factors
Air Regulations · DGCA CPL. The correct option is marked on each.
Q1. The most effective method of scanning for other aircraft for collision avoidance during daylight hours is to use
- A.regularly spaced concentration on the 3-,9-, and 12-o’clock positions
- B.a series of short, regularly spaced eye movements to search each 10-degree sector✓
- C.peripheral vision by scanning small sectors and utilizing off center viewing
- D.a series of eye movements focused at horizon
Q2. The possible symptoms of carbon monoxide poisoning are :
- A.Anxiety, rapid breathing & dizziness
- B.Lethargy, nausea, headache & complexion✓
- C.Blueness of lips, impaired judgment and co-ordination
- D.Excitability, tingling fingertips & loss of inhibition
Q3. If a pilot goes scuba diving to a depth of 30 feet for more than 10 mts , he / she should not fly within :
- A.12 hours
- B.36 hours
- C.24 hours✓
- D.48 hours
Q4. The member of operating crew shall not have taken alcoholic drinks:
- A.6 hrs before commencement if flight.
- B.12 hrs before commencement of flight.✓
- C.24 hrs before commencement of flight.
- D.36 hrs before commencement of flight.
Q5. Without visual aid, a pilot often interprets centrifugal force as a sensation of:
- A.Rising or falling✓
- B.turning
- C.motion reversal
Q6. Abrupt head movement during a prolonged constant rate turn in IMC or simulated instrument condition can cause:
- A.Pilot disorientation✓
- B.False horizon
- C.Elevator illusion
Q7. An abrupt change from climb to straight and level flight can create the illusion of:
- A.Tumbling backwards✓
- B.a nose up attitude
- C.a descent with the wing level
Q8. A rapid acceleration during takeoff can create the illusion of:
- A.Spinning in the opposite direction
- B.Being in a nose up attitude✓
- C.Diving into the ground
Q9. For a flight at night in VMC, the approach will appear to be
- A.Same as day
- B.Steeper✓
- C.Speed will be more
- D.Shallower.
Q10. Large accumulation of carbon mono-oxide in the blood results in:
- A.Dizziness✓
- B.Fear
- C.Hot and Cold Sensations
- D.Disorientation
Q11. The most effective method of scanning for other aircraft for collision avoidance during nighttime hours is to use
- A.regularly spaced concentration on the 3-,9-, and 12-o’clock positions
- B.a series of short, regularly spaced eye movements to search each 10-degree sector
- C.peripheral vision by scanning small sectors and utilizing off center viewing✓
- D.focusing at lighted objects for 30 sec.
Q12. Oxygen is to be carried for all crew members and passengers above a absolute pressure of:
- A.800 hPa
- B.700 hPa
- C.620 hPa✓
- D.1000 hPa
Q13. Taking simple medicine like ‘aspirin’ prior to a flight
- A.Is safe
- B.May slightly effect co-ordination
- C.May reduce blood circulation
- D.May seriously impair judgment✓
Q14. Which statement best defines hypoxia?
- A.A state of oxygen deficiency in the body✓
- B.An abnormal increase in the volume of air
- C.A condition of gas bubble formation around the joints or muscles
- D.Illusions during daytime
Q15. Rapid or extra deep breathing while using oxygen can cause a condition known as
- A.hyperventilation✓
- B.aero sinusitis
- C.aerotitis
- D.hypoxia
Q16. Which would most likely result in hyperventilation?
- A.Emotional tension, anxiety, or fear✓
- B.The excessive consumption of alcohol
- C.An extremely slow rate of breathing and insufficient oxygen
- D.Lack of sleep
Q17. Pilots are more subject to spatial disorientation if
- A.they ignore the sensations of muscles and inner ear
- B.body signals are used to interpret flight attitude✓
- C.eyes are moved often in the process of cross-checking the flight instruments
- D.adequate rest is not taken prior to flight
Q18. If a pilot experiences spatial disorientation during flight in a restricted visibility condition, the best way to overcome the effect is to
- A.rely upon the aircraft instrument indications✓
- B.concentrate on yaw, pitch and roll sensations
- C.consciously slow the breathing rate until symptoms clear and then resume normal breathing rate
- D.ignore instruments and go by visual indications
Q19. A state of temporary confusion resulting from misleading information being sent to the brain by various sensory organs is defined as
- A.spatial disorientation✓
- B.hyperventilation
- C.hypoxia
- D.stress
Q20. The danger of spatial disorientation during flight in poor visual conditions may be reduced by
- A.shifting the eyes quickly between the exterior visual field and the instrument panel
- B.having faith in the instruments rather than taking a chance on the sensory organs✓
- C.leaning the body in the opposite direction of the motion of the aircraft
- D.breathing into a bag
Q21. Which technique should a pilot use to scan for traffic to the right and left during straight-and -level flight?
- A.Systematically focus on different segments of the sky for short intervals✓
- B.Concentration on relative movement detected in the peripheral vision area
- C.Continuous sweeping of the windshield from right to left
- D.Scan through the corner of the eyes
Q22. What effect does haze have on the ability to see traffic or terrain features during flight?
- A.Haze causes the eyes to focus at infinity
- B.The eyes tend to overwork in haze and do not detect relative movement easily
- C.All traffic or terrain features appear to be farther away than their actual distance✓
- D.Objects appear to be closer than their actual distance
Q23. What preparation should a pilot make to adapt the eyes for night flying?
- A.Do not stress eyes after sunset until ready for flight
- B.Avoid red lights at least 30 minutes before the flight
- C.Avoid bright white lights at least 30 minutes before the flight✓
- D.Avoid any light atleast 30 min before the flight
Q24. What is the most effective way to use the eyes during night flight?
- A.Look only at far away, dim lights
- B.Scan slowly to permit off center viewing✓
- C.Concentrate directly on each object for a few seconds
- D.Scan fast to avoid direct viewing
Q25. The best method to use when looking for other traffic at night is to
- A.Look to the side of the object and scan slowly✓
- B.Scan the visual field very rapidly
- C.Look to the side of the object and scan rapidly
- D.Look for anti collision lights
Q26. Large accumulations of carbon monoxide in the human body result in
- A.tightness across the forehead
- B.loss of memory
- C.an increased sense of well-being
- D.lack of oxygen in blood stream✓
Q27. Susceptibility to carbon monoxide poisoning increases as
- A.altitude increases✓
- B.altitude decreases
- C.air pressure increases
- D.above 10,000 ft
Q28. What often leads to spatial disorientation or collision with ground/obstacles when flying under Visual Flight Rules (VFR)?
- A.Continual flight into instrument conditions✓
- B.Getting behind the aircraft
- C.Duck-under syndrome
- D.Continual flight into good weather conditions
Q29. What is the one common factor which affects most preventable accidents?
- A.Structural failure
- B.Mechanical malfunction
- C.Human error✓
- D.Special disorientation
Q30. Hypoxia is a result of which of the following conditions
- A.Insufficient oxygen reaching the brain✓
- B.Excessive carbon dioxide in the blood stream
- C.Limited oxygen reaching the heart muscles
- D.Lack of hemoglobin in blood
Q31. What causes hypoxia?
- A.Excessive carbon dioxide in the atmosphere
- B.An increase in the nitrogen contents in the atmosphere at high altitude
- C.A decrease in the oxygen partial pressure✓
- D.Excessive carbon mono-oxide in the atmosphere
Q32. A loss of cabin pressure may result in hypoxia because as cabin altitude increases
- A.The percentage of nitrogen in the air is increased
- B.The percentage of oxygen in the air is decreased
- C.Oxygen partial pressure is decreased✓
- D.The percentage of CO2 in the air is increased
Q33. What is the symptom of carbon mono oxide poisoning?
- A.Rapid shallow breathing
- B.Pain & cramping of the hands & feet
- C.Dizziness✓
- D.Laziness
Q34. What is the effect of alcohol consumption on the function of body
- A.Alcohol has adverse effect especially as the altitude increases✓
- B.Small amounts of alcohol in the human system increases judgment & decision making ability
- C.Alcohol has little effect if followed by equal quantities of black coffee
- D.Alcohol has no effect if taken more than 6 hrs before flight
Q35. What is the common symptom of hyperventilation?
- A.Tingling of the hands & feet✓
- B.Increased vision keenness
- C.Decreased breathing rate
- D.Euphoria
Q36. Scanning procedure for effective collision avoidance should constitute
- A.Looking outside for 15 seconds, then inside for 5 seconds, then repeat✓
- B.1 minute inside scanning then one minute outside scanning then repeat
- C.Looking out side every 30 seconds except in radar contact when outside scanning is unnecessary
- D.Continuously looking outside
Q37. Small amounts of alcohol in the system:
- A.May affect decision making abilities✓
- B.Will not affect judgment
- C.Will not have effect at sea level
- D.Can be cured by meditation
Q38. Which observed target aircraft would be of most concern with respect to collision avoidance
- A.One which appears to be ahead and moving from left to right at high speed
- B.One which appears to be ahead and moving from right to left at slow speed
- C.One which appears to be ahead with no lateral & vertical displacement & is increasing in size rapidly✓
- D.Non of the above
Q39. When using earth’s horizon as a reference to determine the relative position of other aircraft most concern would be for aircraft
- A.Above the horizon & increasing in size
- B.On the horizon with little relative movement
- C.On the horizon & increasing in size✓
- D.On the horizon & decreasing in size
Q40. When making an approach on narrower than usual runway without VASI assistance, the pilot should be aware that the approach
- A.Altitude may be higher than it appears
- B.Approach altitude may be lower than it appears✓
- C.May result in leveling off too high & landing hard
- D.May result in an overshooting approach
Q41. When making a landing over a darkened or featureless terrain, such as water or snow pilot should be aware of the possibility of illusion. This approach may appear to be
- A.High✓
- B.Low
- C.Shallow
Q42. Haze can give illusion that the aircraft is
- A.Closer to the runway than it actually is
- B.Farther from the runway than actually is✓
- C.The same distance from the runway as there is no restriction to visibility
- D.High on approach
Q43. A sudden penetration of fog can give an illusion of
- A.Pitching up✓
- B.Pitching down
- C.Leveling off
- D.Descending
Q44. Rain on the wind screen can cause what illusion
- A.No illusion
- B.Lower than usual
- C.Higher than usual✓
- D.approach
Q45. How can an instrument Pilot best overcome spatial disorientation?
- A.Rely on kinesthetic sense
- B.Use a very rapid
- C.Read and interpret the flight instruments, and act accordingly.✓
Q46. A Pilot is more subject to spatial disorientation?
- A.Kinesthetic senses are ignored.
- B.Eye are moved often in the process of cross-checking the flight instrument.
- C.Body signal are used to interpret flight attitude.✓
Q47. Which procedure is recommended to prevent or overcome spatial disorientation?
- A.Reduce head and eye movement to the extent possible.
- B.Rely on the kinesthetic senses.
- C.Rely on the indications of the flight instruments.✓
Q48. What action should be taken if hyperventilation is suspected?
- A.Breathe at a slower rate by taking very deep breaths
- B.Consciously breathe at a slower rate than normal✓
- C.Consciously force yourself to taken deep breathe and breathe at a faster rate than normal
Q49. After a general anaesthetic one should not fly for:
- A.72 hours
- B.12 hours
- C.24 hours
- D.48 hours✓
Q50. Abrupt head movement during a prolonged constant rate in IMC or simulated instrument conditions can cause:
- A.pilot disorientation✓
- B.false horizon
- C.elevator illusion
Q51. A sloping cloud formation, an obscured horizon, and a dark scene spread with ground lights and stars can create an illusion known as:
- A.Elevator illusions
- B.autokinesis
- C.false horizons✓
Q52. A flight to be operated at altitudes at which the atmospheric pressure in personnel compartments will be less than 700 hpa should not be commenced unless sufficient stored breathing oxygen is carried to supply: all crew
- A.all crew and Passengers
- B.all crew members and passengers for any period that the atmospheric pressure in
- C.compartments occupied by them will be less than 620 hPa.✓
- D.all crew when pressure is bellow 700 hPa.
Q53. Oxygen is carried on board for crew members and passengers when atmospheric pressure will be less than:
- A.620 hPa
- B.700 hPa✓
- C.376 hPa
- D.800 hPa
Q54. The sensations which lead to spatial disorientation during instrument flight conditions:
- A.Are frequently encountered by beginning instrument pilot, but never by pilots with moderate instrument experience.
- B.occur, in most instances, during the initial period of transition from visual to
- C.instrument flight.✓
- D.Must be suppressed and complete reliance placed on the indications of the flight instruments.
Q55. Hypoxia can be controlled by:
- A.Using oxygen above 5000 AMSL during day time
- B.Breathing in a bag.
- C.Using oxygen above 5000 AMSL during night time✓
- D.Opening windows & air vents
Q56. Decompression sickness causes:
- A.Lack of CO2 in blood.
- B.Lack of O2 in blood.
- C.N2 babbles in tissues.✓
- D.Over breathing
Q57. A major early symptom of Hypoxia is
- A.An increased sense of well being✓
- B.A marked suppression of mental alertness
- C.A sense of fear
- D.A sense of physical weakness
Q58. When body temp. is low, its called:
- A.Hyperventilation
- B.Antokinensis
- C.Hypothermia✓
- D.Hypoxia
Q59. Flight to be operated in pressurized a/c, flight is not to commence unless oxygen is carried to supply:
- A.All crew
- B.All crew Passengers
- C.All crew when pressure below 700 hPa.✓
- D.All crew passengers when below 800 hPa.
Q60. For a VFR flight making approach at night, the approach will appear to be.
- A.Faster than normal approach
- B.Steeper than normal✓
- C.Shallower than normal
- D.Non of the above
Q61. Abrupt head movement during a prolonged constant rate turns in 1MC or simulated inst. conditions can cause:
- A.Pilot Disorientation✓
- B.False Horizon
- C.Illusion of rotation or movement in an entirely different axis
- D.Drowsiness or haziness
Q62. Hyperventilation is caused due to:
- A.Decreased breathing rate
- B.Increased hearty beat
- C.Excessive carbon mono-oxide in the blood
- D.Emotional tension or anxiety✓
Q63. Hyper ventilation is caused due to lack of ___________ in blood system
- A.Oxygen
- B.Carbon Dioxide✓
- C.CO
- D.None of the above
Q64. Abrupt head movements in IMC operations may cause:
- A.False horizon
- B.Disorientation✓
- C.Optical illusion
- D.Hyperventilation
Q65. Oxygen is carried on board for all crew members and passengers when at atmospheric pressure will be less than:
- A.620 hPa
- B.700 hPa✓
- C.376 hPa
- D.800 hPa
Q66. The crew of an aircraft should not consume alcoholic drink
- A.Within 12 hours of flight time
- B.as in ‘a’ and during the flight✓
- C.Within 24 hours of flight time
- D.none of the above
Q67. A pressurized flight shall
- A.Carry oxygen for all crew members
- B.Carry oxygen for all crew members and passengers
- C.Carry oxygen for all crew members and passengers, in the event of loss of pressurization, pressure in the compartment would be less than 700 mb✓
- D.Carry oxygen for all crew members and passengers, in the event of loss of pressurization, pressure in the compartment would be less than 620 mb
Q68. What is the time limit that a pilot should not fly when under the influence of alcohol?
- A.24hrs
- B.12hrs✓
- C.72hrs
- D.18hrs
Q69. Abrupt head movement in a step turn may causes…
- A.Spatial disorientation✓
- B.False horizon
- C.Elevator illusion
Q70. Centrifugal force without visual aids can be interpreted by a pilot as:
- A.Motion reversal
- B.Turning
- C.Rising and falling✓
Q71. Hyperventilation is:
- A.Excessive oxygen in blood stream
- B.Lack of sleep
- C.Insufficient CO2✓
Q72. Due to fog other a/c will appear to be
- A.Nearest than normal
- B.Farther then normal✓
- C.Will have no difference
Q73. Abrupt head movement during instrument flying causes
- A.Pilot disorientation✓
- B.Giddiness
- C.Blurred vision
- D.Air sickness
Q74. Oxygen supply is required for cabin pressure below 700 hPa:
- A.All passengers and crew✓
- B.Only crew members.
- C.All crew members and 5% of passengers
- D.Not required at all
Q75. No person acting as PIC or operating crew member shall have taken alcohol narcotics or stimulates during the preceding.
- A.24 hours
- B.8 hours
- C.12 hours✓
- D.4 hours
Q76. A flight to be operated with a pressurized aeroplane will not be commenced unless a sufficient quantity of stored breathing oxygen is carried to supply;
- A.All crew members
- B.All crew members and passengers
- C.All crew members and passengers, when the atmospheric pressure in any compartment occupied by them is less then 700 mb✓
- D.All crew members and passengers, when the atmospheric pressure in any compartment occupied by lass then 800 mb.